water glass, waterglass
valutööstuses kordkasutusega liivvormide sideainena, betooni valmistamisel kõvendajana jms otstarbel kasutatav naatriumsilikaat Na2SiO3, Na2SiO3 (sodium silicate) - a water-soluble glass used n viscous aqueous solutions as a binder in molding sand, deflocculant in ceramic bodies and glazes, a concrete hardener etc
